Ah... that could very well be the case. The second lobe is so weak relative to the first, that it's very easy to believe that harmonics generated in the LNA were stronger. I'll bear that in mind when re-checking the measurement. Sounds like another win for Occam.
-- john, KE5FX > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Behalf Of Bruce Griffiths > Sent: Thursday, January 17, 2008 5:11 PM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] PM-to-AM noise conversion > > > John > > A simpler and more prosaic cause is distortion in the post phase > detector amplifier. > If this amplifier sees enough of the modulation frequency fundamental > component, > it could conceivably produce enough second harmonic by itself to produce > the observed effect. > > Bruce > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
